OEM parts are very expensive wherever you buy them. I'm wondering if someone makes an after market OWB that is of good quality.
X-2 with REOGEM on Partshark and O.E.M. for One Ways.....Jwfordracing -
I'm looking for a one way bearing, not a dry clutch.
Don't worry, I do trust you guys on this. I never had a doubt. I was just asking if there was a company that made a good after market OWB. I guess not. OEM it will be.Trust us on this one with the oneway bearing (aka: Sprag Clutch).
Nothing wrong with going grease less but like anything else it has to be done right.
Before something like 2011 the OEM roller weights were 2 piece those can not be run grease less. The plastic covers can't take it. In this pictures is a 660 weight on the left ran with grease for 5-6000 miles see the flat spot. That was typical of those weights. The weight on the right is a OEM 2011 weight ran greaseless for about the same mileage. It is in perfect condition. The plastic covers are fused to the metal weight and a much tougher composite than the older 2 piece weights.
Also there is are upgraded sliders, the four pieces on the camplate that the primary drives on, available. They do not have the metal clip and are made of the same composite as the roller weights. They can take the heat and torque of the engine. To use the better sliders you need to use a new style 700 camplate.
Looking at your pictures the primary can be salvaged. If your interested PM me and I'll explain how to clean it up.
You will need to get new DRpulley roller weights (not sliders), a new OEM 700 camplate and the new sliders also DRpulley.
If you want to use grease ordered a new grease cover and O-ring the screws will be much cheaper at a hardware store.
Hey guys, wanted to ask as soon as you said this about the sliders, but also didn't want to distract from the OP, so now that it looks like his open concerns have been answered...Do not buy another 660 cam plate.
Buy a 700 cam plate with the 700 sliders. You'll never have another slider failure or wear again.
I have replaced several 660 cam plates due to excessive slider wear, one of them was my own. I installed the 700 parts in mine.
On my next clutch maintenance, I'll be taking Reogem's advice and installing newer 700 roller weights.
Good info. Looks like I'll buy a set for next time I'm in there. Need to see how my overdrive sliders are doing and switch to greaseless rollers if necessary.Thanks..Ty..Good point.
That is true should have pointed that out. Drpulley has had sliders that eliminate the metal clip used them on my 660 and 450. My 700 had the OEM with the new camplate and the new composite sliders without the clips.
One thing just I remembered the DRPulley sliders on the 660 had to be filed a little as they would jam at the bottom of the slide tower. I see that HW is offering to machine the tower down now.
I just pulled my 2003 Yamaha Grizzly 660 apart and found the exact same thing. Not one ounce of grease. I too have groves in the carrier from the weights. All kinds of dust probably from the belt. This ATV wasn't taken care of so I have already replaced all the coolant items from the radiator on back to the pump and head. Both sides of the sheaves have grooves in them but they are more wavy than deep gouged if that makes any sense. I think that I'm just going to suck it up and get a new set, the cam also has grooves from the weights. I just signed up today so if I didn't do the right way about posting....I apologize in advance.Finally got to taking the primary sheave off and inside the housing I found a piece of a slider and a piece of the little "U" thingy that goes on the slider. I took the sheave apart and to my amazement it was completely dry in there. When I say dry I mean bone dry. There was lots of what seems like black metallic dust. There's also worn grooves at the top of where the rollers roll up to. The sliders seem very brittle. The plate is also very worn where the sliders go. I'm glad I took it apart before it came apart by itself! There's no apparent damage from the pieces I found inside the housing.
I ordered a whole new outer primary sheave assembly. Would it be wise to also get the fixed sheave since it will be more worn than the new outer sheave?
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So I was able to get the CVT back together and it's very quiet now with no banging. I did however purchase a spare sheave for future builds. I was looking on line for some brackets to hold some off road lights. Despite replacing the stock lights, they just are not that good, maybe hard to remove GA clayMany of us run with out grease. Yamaha is the only company that grease this type of CVT. It is accepted that they grease it for the noise reduction.
The wavy grooves on the sheave faces are common. Caused by the belt running in the same area a lot, cruising at the same speeds over and over. You indicate the machine is 19 years old but not the mileage.
I've actually seen more damage from grease contaminated with sand, gravel and belt shedding in the CVT's that running greaseless.